diff --git a/man3/atof.3 b/man3/atof.3
index 1b19026ee..d900a27fb 100644
--- a/man3/atof.3
+++ b/man3/atof.3
@@ -28,7 +28,7 @@
 .\"     386BSD man pages
 .\" Modified Mon Mar 29 22:39:24 1993, David Metcalfe
 .\" Modified Sat Jul 24 21:39:22 1993, Rik Faith (faith@cs.unc.edu)
-.TH ATOF 3  2012-08-03 "GNU" "Linux Programmer's Manual"
+.TH ATOF 3  2013-10-08 "GNU" "Linux Programmer's Manual"
 .SH NAME
 atof \- convert a string to a double
 .SH SYNOPSIS
@@ -54,6 +54,14 @@ except that
 does not detect errors.
 .SH RETURN VALUE
 The converted value.
+.SH ATTRIBUTES
+.SS Multithreading (see pthreads(7))
+The
+.BR atof ()
+function is thread-safe with exceptions.
+It can be safely used in multithreaded applications, as long as
+.BR setlocale (3)
+is not called to change the locale.
 .SH CONFORMING TO
 SVr4, POSIX.1-2001, 4.3BSD, C89, C99.
 .SH SEE ALSO